CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Net sales	$ 242,785	$ 234,265	$ 478,495	$ 496,532
Costs and expenses:
Cost of goods sold	182,565	180,606	359,546	377,735
Selling, general and administrative	48,395	52,042	96,832	105,331
Operating income	11,825	1,617	22,117	13,466
Interest expense, net	4,575	5,162	9,149	10,517
Equity in earnings of investees	(96)	(97)	(297)	(236)
Other expense (income), net	(170)	2,734	447	2,403
Income (loss) before income taxes	7,516	(6,182)	12,818	782
Provision (benefit) for income taxes	1,125	(884)	2,144	334
Net income (loss)	6,391	(5,298)	10,674	448
Net income (loss) attributable to noncontrolling interest	634	(1,740)	794	(1,873)
Net income (loss) attributable to Stoneridge, Inc.	$ 5,757	$ (3,558)	$ 9,880	$ 2,321
Earnings (loss) per share attributable to Stoneridge, Inc.:
Basic (in dollars per share)	$ 0.22	$ (0.13)	$ 0.37	$ 0.09
Diluted (in dollars per share)	$ 0.21	$ (0.13)	$ 0.36	$ 0.09
Weighted average shares outstanding:
Basic (in shares)	26,692	26,424	26,649	26,322
Diluted (in shares)	27,348	26,424	27,358	26,999